Development [ROM] PostmarketOS Linux boot on Xiaomi Pad 5 (nabu)

[serdeliuk]

Do you have any image? I can't wait to test!

Hi, thanks, not yet, as you can see from post #1 XDA requirements are quite strict when comes to ROM development, which on the bright side that is really fine, so, i need to prepare the source of my mods in order to be able to provide a test image, this will add a bit of delay, hopefully by the end of the week i will have all done.

 

[Pineda123]

How is gaming, can you play pc games with things like proton or you can't do something like that at all?

 

[serdeliuk]

How is gaming, can you play pc games with things like proton or you can't do something like that at all?

Proton?, Well, i don't think so, at least sound does not work yet, then someone will need to port Proton and any other WINE dependency to ARM if not done already....

 

[sparky98]

any news?

 

[serdeliuk]

any news?

Unfortunately I was very busy and didn't had time to publish anything, hopefully over the weekend or early next week.

 

[vincele6]

Hello, can you explain what are your kernel modules for ?

 

[serdeliuk]

Hello, can you explain what are your kernel modules for ?

Kernel modules are device drivers, if you read the post #1 you will see the progression of making things working, as usb, wifi, bluetooth, gpu, panel, brightness, and battery, there is still a lot of work to be done, but at least at this stage the tablet can be used safely without ruining the battery.

 

[vincele6]

Kernel modules are device drivers, if you read the post #1 you will see the progression of making things working, as usb, wifi, bluetooth, gpu, panel, brightness, and battery, there is still a lot of work to be done, but at least at this stage the tablet can be used safely without ruining the battery.

I know what kernel modules are. And I read the #1 post, even if only the top post/edit this time...

I was specifically asking what YOUR modules (those you mention in post #1) are for. I wanted to know what HW those modules/drivers are handling.

I guess you answered that with: "usb, wifi, bluetooth, gpu, panel, brightness, and battery".

Thanks

 

[serdeliuk]

I know what kernel modules are. And I read the #1 post, even if only the top post/edit this time...

I was specifically asking what YOUR modules (those you mention in post #1) are for. I wanted to know what HW those modules/drivers are handling.

I guess you answered that with: "usb, wifi, bluetooth, gpu, panel, brightness, and battery".

Thanks

I am afraid i am not following, is not very clear what they do from post #1? For example the first thing posted there is about touchscreen is not clear what the post want to say? Then I fixed the wifi, if for the touch was required to port the chip nt36523 touch driver from downstream kernel, for wifi only firmware files were required to be added, however, any new driver/module requires DTS entries. Then I started to work on battery status that require a few kenel modules to be ported, unfortunately there are too many changes to be explained here, but worth to mention following kernel modules
- ln8000 charging chip driver
- bq2597x charging chip driver
- power delivery driver (PD)
- step charging driver
- nabu smb5 driver
- pmic voter
etc.....

For GPU and panel i used map220v mods extracted from his kenrel
For backlight i used the KTZ8866 ported by Jianhua Lu (from map220v repo too, as was quicker)

All will be more clear when the source code will be released, as I will release patch files to let others easily upgrade the kernel and migrate all mods to latest stable if they want or get inspiration from my mods for their new device porting

 

[serdeliuk]

And now all ported to latest stable mainline 6.1.9

 

[serdeliuk]

Hi, can you drop kernel patches (in any form you can, even in pmos APKBUILD) later? I'm porting Arch Linux for nabu, but while i can make userspace works flawlessly i'm still using mapv220 kernel because i know nothing about Linux kernel programming.

The kernel 6.1.10 patches are now available for download. Please see post #1

 

[sparky98]

are there source code of these patches?

 

[serdeliuk]

are there source code of these patches?

Patches itself are the source code of the additions to linux kernel 6.1.10 to make it for nabu, in other words, download linux kernel 6.1.10 apply patches and the result is nabu mainline kernel latest stable.

 

[serdeliuk]

I have added preview images with prebuilt PostmarketOS, see post #1

 

[serdeliuk]

Are you kidding me??? The kernel guys started to push new kernel stable versions on the conveyor belt.... now latest stable is 6.1.11 , what the heck....

 

[aznd]

is there some different virtual keyboard to use? there are no arrow buttons or a tab button and typing in a terminal without that is really painful
also, is something like auto rotation possible?
edit: also, the pen is not working even if connected via bluetooth. would be nice if it would work

 

[serdeliuk]

is there some different virtual keyboard to use? there are no arrow buttons or a tab button and typing in a terminal without that is really painful
also, is something like auto rotation possible?
edit: also, the pen is not working even if connected via bluetooth. would be nice if it would work

The only viable on screen (virtual) keyboard is the one that i installed, you can try other ones too, they have a special page for this https://wiki.postmarketos.org/wiki/Input_methods

Auto rotation is not yet available, yet you can rotate the screen from settings.

Thanks for the info in regards to the pen, i suppose that pen charging does not work either, unfortunately i do not own one and i am not able to make it to work. I suppose that you do not have an original keyboard to let us know if works.

 

[aznd]

The only viable on screen (virtual) keyboard is the one that i installed, you can try other ones too, they have a special page for this https://wiki.postmarketos.org/wiki/Input_methods

Auto rotation is not yet available, yet you can rotate the screen from settings.

Thanks for the info in regards to the pen, i suppose that pen charging does not work either, unfortunately i do not own one and i am not able to make it to work. I suppose that you do not have an original keyboard to let us know if works.

will have a look at the other input methods, thanks.
yeah, i dont have an original keyboard

 

[D6072]

Does USB work?

 

[serdeliuk]

Well, i didn't really tested USB or dig into too deep, it works for charging and as network gadget, which is not required anymore because the wifi works, so probably with some kernel reconfiguration may work as host controller too, but right now i suppose not.